For an object to have kinetic energy, it must be under tension.
True or false
KE = 1/2 mv^2
see any tension there?
False! An object can have kinetic energy even without being under tension. Kinetic energy is simply the energy an object possesses due to its motion. So, as long as something is moving, it can have kinetic energy regardless of whether there is tension involved. Keep in mind, though, that tension can be a factor that contributes to an object's motion. But it is not a requirement for kinetic energy.
False.
An object can have kinetic energy regardless of whether it is under tension or not. Kinetic energy is the energy of an object due to its motion, and it is determined by the mass and velocity of the object. Tension is a force that results from the pulling or stretching of an object, and it does not directly determine the presence or absence of kinetic energy.
False.
To have kinetic energy, an object must be in motion. Kinetic energy is the energy associated with the movement of an object. It depends on the mass of the object and its velocity. Tension, on the other hand, refers to the force pulling or stretching an object, usually with the intent of keeping it stationary or supporting its weight. While tension can be involved in certain situations where an object is moving, it is not a requirement for an object to have kinetic energy.